might be an idea worth considering:<br><br>have the possibility to calculate a route, and pre-render the bitmaps of your route (at a few zoom-levels)<br>This way it doesn't have to be done on the fly when you know for example where you are going to travel to<br>
when you don't follow the planned route it will of course render new files when nescessary<br><br>you should also have the option to delete them afterwards of course<br><br>or maybe a setting "two way trip";<br>
this setting wil save all the rendered files on your way to your destination,<br>use the pre-rendered images on your way back, and ask you if you want to delete them when you return home<br><br><br>just an idea<br><br><div class="gmail_quote">
On Mon, Dec 14, 2009 at 10:32 AM, Mike Crash <span dir="ltr"><<a href="mailto:mike@mikecrash.com">mike@mikecrash.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br>
Sure I'm using speed data from OSM and if not available, set it based on way<br>
type and common speeds. I can find shortest and fastest path. No detection<br>
if road is in the city yet.<br>
<br>
I made some progress in last days and I'm going to use it for the first time<br>
to drive home today :)<br>
<div><div></div><div class="h5"><br>
<br>
Bastian Muck wrote:<br>
><br>
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> Mike Crash schrieb:<br>
>> I use A* for routing, it is usable, but still not what I expect.<br>
>> But I have some improvements in my mind :) I need to create<br>
>> rerouting now and to test it in real life<br>
><br>
> I don't have any idea, how the code looks like, but I guess, that you<br>
> use gps-positions as heuristic and distances as edge-weights. That<br>
> means that you always get the shortest path. If you want to get the<br>
> fastes path, then you have to use timevalues calculated by possible<br>
> speed and edge-length. With openstreetmaps that can be difficult,<br>
> because many roads don't have any speedsproperties. You often only can<br>
> use the roadtype depending on country to guess the speed.<br>
> Maybe you used this, but in a first shit, I guess that you don't.<br>
><br>
> I hope these ideas can help you improving your tool.<br>
><br>
> Greetings Bastian<br>
><br>
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